1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Housing/Rotor destroyed...Are the Irons OK?? - GSLSE

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Old Jun 24, 2017 | 03:26 PM
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Housing/Rotor destroyed...Are the Irons OK?? - GSLSE

HI All,

First Rebuild lasted 200 miles before catastrophic failure (user error). It appears a screw got in there somehow?





I have been able to track down a rotor and housing (Thanks Robert and Rich!!!)

Are the Irons ok to use based on these marks?





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Old Jun 24, 2017 | 03:35 PM
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From: https://www2.mazda.com/en/100th/
ow! that iron could be saved. the inexpensive way would just be to use some 400 grit paper on a sanding block. it also could be sent out for lapping and a re-nitriding
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Old Jun 24, 2017 | 11:38 PM
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Is the sanding necessary or are they ok as is? I'm just curious how much prep work I need to do.
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Old Jun 25, 2017 | 12:43 AM
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Wow, that rotor is a clock if I've ever seen one!

Go over that iron with a box cutter blade. I bet that is all you will need to do to it. The little bit of pitting it might have isn't super critical. All it needs is to be flat. Others might have other opinions but that is what I would do first.
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Old Jun 25, 2017 | 12:01 PM
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From: https://www2.mazda.com/en/100th/
Originally Posted by tallbozo
Is the sanding necessary or are they ok as is? I'm just curious how much prep work I need to do.
i wouldn't use as is, but it probably wouldn't take much to make it flat
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Old Jun 26, 2017 | 11:16 AM
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So the idea is to just take the sharp edges out and blend it smooth? And not sand so much it creates a concave dip correct?
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Old Jun 26, 2017 | 11:51 AM
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Correct, but I wouldn't sand at all.
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